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Horsetail

Horsetail
Horsetail
Product Code : AZ510
Product Description

  Horsetail
 They are commonly known as horsetails.
In these plants the leaves are greatly reduced and usually non-photosynthetic. They contain a single, non-branching vascular trace, which is the defining feature of microphylls. However, it has recently been recognised that horsetail microphylls are probably not primitive like in Lycopodiophyta (clubmosses and relatives), but rather advanced adaptations, evolved by the reduction of a megaphyll. They are therefore sometimes actually referred to as megaphylls to reflect this homology.
The leaves of horsetails grow in whorls fused into nodal sheaths. The stems are green and photosynthetic, and distinctive in being hollow, jointed and ridged (with sometimes 3 but usually 6-40 ridges). There may or may not be whorls of branches at the nodes; when present, these branches are identical to the main stem except being smaller and more delicate.
Specification:
Product name
 Horsetail P.E. 
 
Item
 Specification
 
Appearance
 Brown yellow fine powder
 
Odor
 Characteristic
 
Assay
(organic silica, HPLC)
 7% Min.
 
Identification
 Positive
 
Sieve analysis
 100% pass 80 mesh
 
Loss on drying
 5.0% Max.
 
Sulphated ash
 5% Max.
 
Heavy metals
 10 ppm Max.
 
Arsenic (as As)
 2 ppm Max.
 
Pesticide residue
 2 ppm Max.
 
Total plate count
 1000 cfu/g Max.
 
Yeast and mould
 100 cfu/g Max.
 
E.Coli
 Negative
 
Salmonella
 Negative
 

Storage:be stored in cool and dry place,keep away from rain and sunlight
Shelf life:2years

  Horsetail
 They are commonly known as horsetails.
In these plants the leaves are greatly reduced and usually non-photosynthetic. They contain a single, non-branching vascular trace, which is the defining feature of microphylls. However, it has recently been recognised that horsetail microphylls are probably not primitive like in Lycopodiophyta (clubmosses and relatives), but rather advanced adaptations, evolved by the reduction of a megaphyll. They are therefore sometimes actually referred to as megaphylls to reflect this homology.
The leaves of horsetails grow in whorls fused into nodal sheaths. The stems are green and photosynthetic, and distinctive in being hollow, jointed and ridged (with sometimes 3 but usually 6-40 ridges). There may or may not be whorls of branches at the nodes; when present, these branches are identical to the main stem except being smaller and more delicate.
Specification:
Product name
 Horsetail P.E. 
 
Item
 Specification
 
Appearance
 Brown yellow fine powder
 
Odor
 Characteristic
 
Assay
(organic silica, HPLC)
 7% Min.
 
Identification
 Positive
 
Sieve analysis
 100% pass 80 mesh
 
Loss on drying
 5.0% Max.
 
Sulphated ash
 5% Max.
 
Heavy metals
 10 ppm Max.
 
Arsenic (as As)
 2 ppm Max.
 
Pesticide residue
 2 ppm Max.
 
Total plate count
 1000 cfu/g Max.
 
Yeast and mould
 100 cfu/g Max.
 
E.Coli
 Negative
 
Salmonella
 Negative
 

Storage:be stored in cool and dry place,keep away from rain and sunlight
Shelf life:2years

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